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////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2008 Laurent Gomila (laurent.gom@gmail.com)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
// you must not claim that you wrote the original software.
// If you use this software in a product, an acknowledgment
// in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
// and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
////////////////////////////////////////////////////////////
#ifndef SFML_AUDIODEVICE_HPP
#define SFML_AUDIODEVICE_HPP
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Audio/OpenAL.hpp>
#include <set>
#include <string>
namespace sf
{
class AudioResource;
namespace priv
{
////////////////////////////////////////////////////////////
/// AudioDevice is the high-level wrapper around the audio API,
/// it manages creation and destruction of the audio device and context
/// and stores the device capabilities
////////////////////////////////////////////////////////////
class AudioDevice
{
public :
////////////////////////////////////////////////////////////
/// Get the unique instance of the class
///
/// \return Unique instance of the class
///
////////////////////////////////////////////////////////////
static AudioDevice& GetInstance();
////////////////////////////////////////////////////////////
/// Add a reference to the audio device
///
////////////////////////////////////////////////////////////
static void AddReference();
////////////////////////////////////////////////////////////
/// Remove a reference to the audio device
///
////////////////////////////////////////////////////////////
static void RemoveReference();
////////////////////////////////////////////////////////////
/// Get the OpenAL audio device
///
/// \return OpenAL device (cannot be NULL)
///
////////////////////////////////////////////////////////////
ALCdevice* GetDevice() const;
////////////////////////////////////////////////////////////
/// Get the OpenAL format that matches the given number of channels
///
/// \param ChannelsCount : Number of channels
///
/// \return OpenAL device (cannot be NULL)
///
////////////////////////////////////////////////////////////
ALenum GetFormatFromChannelsCount(unsigned int ChannelsCount) const;
private :
////////////////////////////////////////////////////////////
/// Default constructor
///
////////////////////////////////////////////////////////////
AudioDevice();
////////////////////////////////////////////////////////////
/// Destructor
///
////////////////////////////////////////////////////////////
~AudioDevice();
////////////////////////////////////////////////////////////
// Static member data
////////////////////////////////////////////////////////////
static AudioDevice* ourInstance; ///< Unique instance of the audio device
////////////////////////////////////////////////////////////
// Member data
////////////////////////////////////////////////////////////
ALCdevice* myDevice; ///< Audio device
ALCcontext* myContext; ///< Audio context
unsigned int myRefCount; ///< References count
};
} // namespace priv
} // namespace sf
#endif // SFML_AUDIODEVICE_HPP
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